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National Stock Number:
5310-01-175-3745
Federal Supply Class:
5310
National Item Identification Number:
011753745
Description:
WASHER,FLAT
Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.
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Manufacturer Information:
| 12614997 | 19200 | US ARMY ARDEC RDECOM | | 5068622 | A181N | BAE SYSTEMS BOFORS AB | | 565068622000 | A1140 | LEONARDO SPA DIVISIONE SISTEMI DI DIFESA | | 5068622 | S3712 | BAE SYSTEMS BOFORS AB | | 5068622 | S3715 | BOFORS AB |
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Techincal Specification:
| CENTER HOLE SHAPE STYLE | ROUND | | CROSS-SECTIONAL SHAPE STYLE | RECTANGULAR | | HOLE DIAMETER | 118.0 MILLIMETERS NOMINAL | | OUTSIDE LEFT CORNER CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | OUTSIDE RIGHT CORNER CHAMFER ANGLE | 45.0 DEGREES NOMINAL | | OVERALL DIAMETER | 172.0 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A108 GR 1045 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 1045 OVERALL | | PERIPHERAL SHAPE STYLE | ROUND | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171 FINISH 5.3.1.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THICKNESS | 12.0 MILLIMETERS NOMINAL |
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